Citation:
LIN Shen, WANG Shi-Ming, ZHENG Ying, LI Xiao-Jing. Catalytic Activity of Heteropoly Compound (NH4)11Gd[Gd4Mo29O100(H2O)16]·33H2O in Phenol Hydroxylation[J]. Chinese Journal of Applied Chemistry,
;2000, 17(2): 192-194.
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Title moly bdogadolinium hetero poly com pound ha s been synthesized and used to catalize the hydrox ylation of phenol with hydrogen peroxide. The effects of reaction time, tempera ture, pH value, n(phOH)/n(H2O2) and solvent on the cataly ticactivity for phenol hydrox ylation have been investigated. The results show that the titlecom pound in the presence of V2O5 shows an excellent catalytic activity for phenol hydroxylation. When methanol is used as solvent at n(phOH)/n(H2O2)=1:2, pH=5, at 343 K and for 4 h, hydroquino ne in yield of 42.10% is obtained with phenol conversion of 40.50%.
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